Apparatus

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sensors Mode-S transponder

151D65

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73061 · BOEING 737-500

Hex
151D65
Octal
05216545
Decimal
1,383,781
Country
RU
Tail
RA-73061
Type
B735
No current signal · last broadcast 6d ago
Flights observed
61
Distinct callsigns
20
Country
RU
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S 151D65.

Country allocation

The ICAO 24-bit address 151D65 falls within the block assigned to Russia (RU) by ICAO Annex 10, Volume III. Every aircraft registered in Russia receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
UTA282 UTair Aviation 5 2026-05-31
UTA6578 UTair Aviation 3 2026-06-16
UTA445 UTair Aviation 3 2026-06-15
UTA519 - 2 2026-06-10
UTA513F - 2 2026-06-21
UTA477 UTair Aviation 2 2026-05-28
UTA456 UTair Aviation 2 2026-06-12
UTA455 UTair Aviation 2 2026-06-12
UTA446 UTair Aviation 2 2026-05-22
UTA375 UTair Aviation 2 2026-06-08
UTA250 UTair Aviation 2 2026-06-13
UTA183 UTair Aviation 2 2026-05-29
UTA1250 UTair Aviation 2 2026-06-09
00000000 - 2 2026-05-31
UTA9044 - 1 2026-06-19
UTA9042 UTair Aviation 1 2026-06-18
UTA6562 UTair Aviation 1 2026-05-22
UTA6436 UTair Aviation 1 2026-05-25
UTA6433 UTair Aviation 1 2026-05-25
UTA6129 - 1 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-21 UTA492 AER → UFA Jun 21, 23:59 UTCJun 22, 08:29 UTC8h 30m
2026-06-21 UTA513F - Jun 21, 21:24 UTCJun 21, 21:54 UTC30m
2026-06-21 UTA513F - Jun 21, 16:44 UTCJun 21, 18:14 UTC1h 30m
2026-06-19 UTA9044 - Jun 19, 17:04 UTCJun 19, 19:45 UTC2h 40m
2026-06-18 UTA9042 BTK → UFA Jun 18, 02:10 UTCJun 18, 13:05 UTC10h 55m
2026-06-16 UTA6578 KGP → UFA Jun 16, 16:25 UTCJun 17, 00:05 UTC7h 41m
2026-06-16 UTA6578 KGP → UFA Jun 16, 01:04 UTCJun 16, 16:30 UTC15h 25m
2026-06-15 UTA6578 KGP → UFA Jun 15, 17:40 UTCJun 16, 16:30 UTC22h 50m
2026-06-15 UTA445 VKO → KGP Jun 15, 12:05 UTCJun 16, 01:04 UTC13h 0m
2026-06-15 UTA398F - Jun 15, 07:35 UTCJun 15, 10:20 UTC2h 45m
2026-06-14 UTA397 VKO → GDZ Jun 14, 09:25 UTCJun 14, 14:30 UTC5h 5m
2026-06-13 UTA356 GRV → VKO Jun 13, 22:30 UTCJun 14, 07:10 UTC8h 40m
2026-06-13 UTA250 AER → VKO Jun 13, 08:50 UTCJun 13, 09:10 UTC20m
2026-06-13 UTA250 AER → VKO Jun 13, 06:25 UTCJun 13, 07:30 UTC1h 5m
2026-06-12 UTA249 VKO → AER Jun 12, 17:25 UTCJun 12, 20:25 UTC3h 0m
2026-06-12 UTA456 NOJ → VKO Jun 12, 15:15 UTCJun 12, 15:35 UTC20m
2026-06-12 UTA455 VKO → NOJ Jun 12, 07:40 UTCJun 12, 14:30 UTC6h 50m
2026-06-11 UTA576 KRR → VKO Jun 11, 14:30 UTCJun 11, 18:15 UTC3h 45m
2026-06-11 UTA575 VKO → KRR Jun 11, 08:40 UTCJun 11, 12:00 UTC3h 20m
2026-06-10 UTA520 AER → HMA Jun 10, 15:50 UTCJun 11, 00:00 UTC8h 10m
2026-06-10 UTA519 - Jun 10, 13:45 UTCJun 10, 14:20 UTC35m
2026-06-09 UTA519 - Jun 9, 19:20 UTCJun 10, 02:40 UTC7h 20m
2026-06-09 UTA1250 AER → VKO Jun 9, 09:40 UTCJun 9, 10:20 UTC40m
2026-06-09 UTA1250 AER → VKO Jun 9, 06:40 UTCJun 9, 08:55 UTC2h 15m
2026-06-08 UTA1249 VKO → AER Jun 8, 23:45 UTCJun 9, 03:00 UTC3h 15m
2026-06-08 UTA1376 SCW → VKO Jun 8, 19:30 UTCJun 8, 20:55 UTC1h 25m
2026-06-08 UTA375 VKO → SCW Jun 8, 16:50 UTCJun 8, 18:10 UTC1h 20m
2026-06-08 UTA456 NOJ → VKO Jun 8, 08:20 UTCJun 8, 15:10 UTC6h 50m
2026-06-08 UTA455 VKO → NOJ Jun 8, 07:30 UTCJun 8, 07:50 UTC20m
2026-06-07 UTA376 SCW → VKO Jun 7, 20:15 UTCJun 7, 21:55 UTC1h 40m
2026-06-07 UTA375 VKO → SCW Jun 7, 17:25 UTCJun 7, 18:55 UTC1h 30m
2026-06-07 UTA464 TJM → VKO Jun 7, 13:35 UTCJun 7, 15:30 UTC1h 55m
2026-05-31 00000000 - May 31, 22:50 UTCJun 1, 20:15 UTC21h 25m
2026-05-31 UTA419 SGC → KUF May 31, 19:30 UTCMay 31, 23:00 UTC3h 30m
2026-05-31 UTA282 KUF → SVX May 31, 10:20 UTCMay 31, 11:05 UTC45m
2026-05-29 UTA184 KZN → SGC May 29, 20:50 UTCMay 29, 21:15 UTC25m
2026-05-29 UTA183 SGC → KZN May 29, 18:45 UTCMay 29, 19:15 UTC30m
2026-05-28 UTA183 SGC → KZN May 28, 21:50 UTCMay 29, 19:15 UTC21h 25m
2026-05-28 UTA477 SGC → KUF May 28, 05:05 UTCMay 28, 22:35 UTC17h 30m
2026-05-28 UTA477 SGC → KUF May 28, 02:10 UTCMay 28, 22:35 UTC20h 25m
2026-05-27 UTA112 SVX → SGC May 27, 14:15 UTCMay 27, 14:25 UTC10m
2026-05-27 UTA282 KUF → SVX May 27, 07:55 UTCMay 27, 10:30 UTC2h 35m
2026-05-25 UTA6436 KZN → SGC May 25, 07:45 UTCMay 25, 22:34 UTC14h 49m
2026-05-25 UTA6433 SGC → GSV May 25, 02:35 UTCMay 25, 02:45 UTC10m
2026-05-23 UTA282 KUF → SVX May 23, 16:25 UTCMay 24, 10:35 UTC18h 10m
2026-05-23 UTA282 KUF → SVX May 23, 13:20 UTCMay 24, 10:35 UTC21h 15m
2026-05-23 UTA185 UFA → NUX May 23, 08:20 UTCMay 23, 16:35 UTC8h 15m
2026-05-22 UTA6562 KGP → UFA May 22, 16:40 UTCMay 23, 13:30 UTC20h 49m
2026-05-22 UTA445 VKO → KGP May 22, 11:20 UTCMay 23, 08:30 UTC21h 10m
2026-05-22 UTA445 VKO → KGP May 22, 10:50 UTCMay 23, 08:30 UTC21h 40m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the RA-73061 page for operator, model, and routing details .

Mode-S 151D65 frequently asked

What is Mode-S code 151D65?
151D65 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73061.
Where is Mode-S 151D65 registered?
Mode-S code 151D65 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D65 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151D65, octal 05216545, decimal 1,383,781.
What flights does 151D65 operate?
Mode-S 151D65 has broadcast 20 distinct callsigns, including UTA282, UTA6578, UTA445, UTA519, UTA513F.